CA1078775A - Cleaning coke oven doors - Google Patents

Cleaning coke oven doors

Info

Publication number
CA1078775A
CA1078775A CA265,587A CA265587A CA1078775A CA 1078775 A CA1078775 A CA 1078775A CA 265587 A CA265587 A CA 265587A CA 1078775 A CA1078775 A CA 1078775A
Authority
CA
Canada
Prior art keywords
sealing surface
along
jet
door
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA265,587A
Other languages
French (fr)
Inventor
George Taylor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Steel Corp
Original Assignee
British Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Steel Corp filed Critical British Steel Corp
Application granted granted Critical
Publication of CA1078775A publication Critical patent/CA1078775A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B43/00Preventing or removing incrustations
    • C10B43/02Removing incrustations
    • C10B43/08Removing incrustations with liquids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B43/00Preventing or removing incrustations
    • C10B43/02Removing incrustations
    • C10B43/04Removing incrustations by mechanical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Coke Industry (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE

Apparatus and method for removing tarry deposits from the sealing surface of coke oven doors. At least the lowermost portion of the sealing surface is cleaned by reciprocating high pressure water jets, directed so as to undercut the tarry deposit. Removal of the deposit may be assisted by the use of movable scraper blades which on encountering a hard deposit are adapted to be pressed more firmly into the deposit.

Description

- This invention relates to cleaning coke oven doors.
Coke oven doors may be of the self-sealing kind, which require no additional sealing medium to effect a substan~
tially gas-tight seal between the door and the door jamb. Such doors may rely on metal-to-metal contact between the machined . ~:
door jamb and a sealing diaphragm extending around the edge of the door. When the door is removed to allow coked coal to be discharged from the coke oven, it is usually necessary ~ to clean tar and carbon from the sealing diaphragm of the `.
~10 door to prevent a build-up of tarry deposits which would .. ~ ~
prevent prope.r sealing. The deposits are usually most severe : .
.
: at the lower edge and at and immediately above the lower corners of the door. . ..
The present invention, as herein broadly claimed, ..
.
provides a method of removïng tarry deposits from an elongated .
narrow sealing sur.face of a generally rectangular coke oven door, this sealing surface extending continuously about the peripheral side and end areas of the inner surface of the door.
This method comprises directing a moving, high pressure, fan-shaped liquid jet of water or an aqueous.clean.ing solution at the lower end area of the seal surface, the jet being reciprocated .~.~
along the seal surface and being oriented so its long dimension :~.
always extends across the narrow width of the seal surface, -:
this jet being directed to intersect the seal surface at an acute angle.
Also broadly claimed herein is a clean.ing machine ~ ;
for a vertically oriented rectangular coke oven door having a relatively narrow continuous sealing surface on one side of the door extending along the peripheral edge area of the door, the sealing surface. including opposite side portions and opposite, horizontally extending, upper and lower end portions. The 1078775 ~ ~

machine comprises at least one moveable nozzle means for forming . .;.
and directing a flat, fan-shaped high pressure liquid jet of water or an aqueous cleaning solution against the sea~ing ~ .
surface~ means for supporting and carrying the nozzle means linearly and continuously along at least a portion of the . length.of the lower end portion of the sealing surface and .-along at least part of the length of one of the side portions of the sealing surface, and means for maintaining the long : . :
dimension of the liquid jet al~ays directed across the narrow width.of the sealing surface while the nozzle is moved.

~ . / '," ' :
/

.:
" !:

` :' ' , - la -, .. .
_ .
It is not always necessary that all tarry deposits be entirely removed from the whole seal1ng surface of the door. It is however preferred that substantially all deposits should be removed from the seal in the region where the high pressure water jets are delivered.
It is particularly preferred that the water jets should be traversed along the sealing surface for at least the d~stance between adjacent jets, to treat a continuaus length of sealing surface, and further that the jets should reciprocate along the sealing surface to carry out more than one cleaning pass.
It is desirable to prevent significant build-up of the deposits by regular use of the invention wnenever the coke oven doors are opened for tne purpose of pushing coke from the oven.
The effectiveness of the water jets depends on the pressure of the water at the nozzles, the rate at which water is passed through the nozzles and the configuration of the jet itself, and also depends on the distance - 20 between the nozzles and the sealing surface of the door.
This distance is desirably as short as possible, consistent with adequate dispersion of the jet to clean a sufficiently wide area of the seal and the avoidance of the chance of direct contact between the nozzle and the deposits or even the sealing surface itself.
Distances between ~ inch and one inch may be suitable.
Water pressures at the nozzle between 3000 and 5000 psi, .. ~ .
. . . ~ .
,.. ,................................................................. ~ . .
and flow rates between 0.1 and 0.2 litres per second may prove generally useful. A flat fan-shaped jet has been found particularly suitable, the long dimension of the jet pattern lying perpendicular to the direction in which the jet is traversed along the sealing surface.
The high pressure water jets can of course be used to clean the whole of the peripheral sealing surface, in the sense of removing tarry deposits therefrom. How-ever it is usually possible to remove tarry deposits from the whole of the sealing surface except the lowermost portion by mechanical scraper blades. Thus the use of high pressure water jets is generally confined to those areas which can be more satisfactorily cleaned by the water jets than by other means. In the case of a ~15 conventional upright rectangular self-sealing coke oven door, the lowermost portion of the sealing surface may be considered to be the lower horizontal section of the sealing surface, together with the two lower corners and a short distance up each of the vertical sections of the sealing surface.
The carrier means may further be adapted to enable a further water jet to be traversed across at least the uppermost portion of the sealing surface.
The nozzle means may be adapted to provide a flat jet which is inclined at an acute angle to the sealing surface, so that in use the jet acts to undercut the tarry deposit as the jet traverses the sealing surface.

The nozzle means may be further adapted to provide two ~ets, both of which are inclined at an acute angle to the sealing surface but in opposite senses sa as to provide undercutting of the tarry deposit when the ~ nozzle means is reciprocated across the sealing surface.
The scrapers may be of a novel kind having a pivoted blade urged by resilient biassing means outwardly, -i.e. towards the sealing surface of the doors, in which the blade edge leads the pivot axis in the scraping direction and lies outermost of the scraper assembly -so that on encountering~a hard deposit the blade tends ~to be pushed outwardly to press more firmly into the deposit. There is preferably provided stop means to prevent undue outward movement of the blade, whether 15 ~ under the influence of the biassing means or through encounterin~g resistant deposits.
The invention is illustrated by way of example in the accompanying drawings in which:-; ~ Figure 1 is a general view in side elevation of one embodiment of a door cleaning machine;
Figure 2 shows a section taken between II - II as A~
: : :~::
shown in Figure l;
Figure 3 is an isometric view of one scraper element;
; Figure 4 shows a section through the scraper element taken between IV - n as shown in Figure 5;
Figure 5 is a partial view in elevation of one end of the cLeaning machine of Figure l;

_ 4 --. ` .

Figure 6 is a section on line VI - VI of Figure 5;
Figure 7 shows an alternative version of the water spraying arrangement illustrated in Figure 6;
Figure 8 is a view on line VIII - VIII of Figure 7; and Figure 9 is a view on line IX - IX of Figure 7.
The mechanism shown in the drawings is suitable for use with a conventional upright rectangular coke oven door of the self-sealing kind. Such a door has a continuous peripheral sealing surface comprising a metal diaphragm lying adjacent the edges of the door.
The diaphragm is straight along the sides of the door and is curved at the corners of the door. It faces forwardly of the door, i.e. towards the interior of the coke oven when in use.
In Figures 1 and 2 it can be seen that the mechanism is based on the structural framework 10 of a conventlonal door cleaning machine having a door gripping mechanism 11, the latter (chain dotted in Figure 2) having latches 12 for securely retaining a coke oven door 15 (also chain dotted) in an exact position. The door is shown to comprise a steel backing plate 16, a central refractory plug 17 and the circumferential sealing diaphragm 18. The door and the gripping mechanism are conventional and do not need to be further described.
The long upright sides of the door are cleaned by two arrays of scraper elements 21, only the nearer `- " 10~7877S

scraper elements bein8 shown in Figure 1 for the sake of clarity. Each array is made up of eleven individual scraper elernents equally spaced and oriented so that their blades point downwards. On each side of the S machine the scraper elements are mounted so that three are carried on each of three rails 22 and one is carried -on each of two shorter end rails 23, the rails on each side being carried on sliding blocks 25, which also serve to link the rails together.
The shorter end rails 23 at each end of the scraper rail assemblies are linked to roller chains 27 which, passing along guide channels 30 at the ends of the framework 10 corresponding to the short horizontal sides of the toor lS, connect the arrays of scraper elements on either side of the mechanism.
The sliding blocks 25 are slidably mounted on pairs of guide rails 31, which are in turn fixed to the framework 10 in alignment with the long vertical sides of the door. This mounting allows the arrays of scraper elements limited freedom of movement back and forth along the framework.
Separate connecting rods 32 on each side of the framework pass through the sliding blocks 25 and are clamped to them, linking them all together on each side.
Each lowermost sliding block 25 on the sides of the mechanism is linked to a lever arm 35 each of which transmits motive power from a hydraulic cylinder 36.

`- ` 1~78~7~

Each lever arm 35 is part of a linkage in which the remote end of the arm is connected to a fixed pivot 37 by way of a short pivotal link 40; the Links 40 allow the sliding blocks 25 to reciprocate along the guide S rods 31 in a straight line as the lever arm moves.
The hydraulic cylinders 36 are pivotally mounted on the framework 1~ at 41. Their pistons work on the lever arms 35 by means of connecting rods 42.
The two hydraulic cylinders are constrained to work always in opposite senses by means of a simple control mechanism; while one piston is being extended, the other is being retracted. By virtue also of the connection by ~ -the roller chain 27 between the scraper rails 22 on either side of the framework 10, the scraper elements themselves move in opposite directions. While one array moves downwardly along one side of the coke oven door, scraping at the tarry deposits, the other moves upwardly along the other side of the door having little direct cleaning effect on the door, but cleaning to some extent the scraper blades by virtue of their reverse movement.
The stroke of the cylinder 36, the position at which its connecting rod 42 is mounted on the Iever arm 35 and the separation between the scraper elements 21 is such that every relevant part of the sealing strip on the door is scraped by at least one scraper blade.
The scraper elements 21 are shown in more detail in Figures 3 and 4. Each comprises a cradle 45 welded ,.. ... . -7~7~7S

to the head of the rail 22. A scraper head 46 is pivotally mounted on a partially threaded pin 47 screwed between the ears of the cradle 45, a bearing bush 50 being provided in the scraper head. The pin 47 is S provided with an internal screw thread 51 for a lubricating nipple and a passageway 52 for lubricant.
The scraper head carries a scraper blade 55 bolted into a slot in its leading end. The blade is biassed away from the rail 22 by a spring 56, located over a pin 57, acting between the rail and the leading end of the scraper head. Rocking movement of the scraper head on the pin 47 is limited by a bolt 60 screwed into the trailing end of the scraper head, the bolt head abutting the rail 22. The normal attitude of the scraper head, in which the blade is fully outwardly extended by the spring 56, can be adjusted by the bolt 60, which can be secured by a check nut 59.
The leading edge of the blade 55 leads the pivot pin 47 and lies outermost of the scraper element so that, when the scraper is moving downwardly along the door, i.e. is on its cleaning strake, and encounters a particularly resistant deposit, such as carbonised tar, the blade tends not to be pushed over the deposit but to bite into it.
~he bolt 60 is adjusted so that the blade is, in use, just clear of the sealing diaphragm 18 of the coke oven door, for example by one-sixteenth inch, to allow ;` 11~78775 the surface to be scraped clean but to prevent it biting into and damaging the sealing surface itself. .
Figures S and 6 show one arrangement of how the high pressure water jets are provided. Each jet is produced from a spray unit 63. Each spray unit comprises a flexible hose 61 through which high pressure water is delivered by way of a swivelling coupling 62 to a nozzle block 65 having an internal bore 64 which leads the water to the nozzle 66. Two spray units 63 are carried on each of the roller chains 27. Each spray unit is mounted on an adapted chain link 67, in which longer rivets 68 hold a pair of angle brackets 69 which in turn carry the nozzle block 65.
Each chain 27 is guided around one end and the two adjacent corners of the door cleaning mechanism by simllar guide channels 30, one being shown in section ln Figure 6. The channel is defined by two spaced flanges 70 and ?1. The inner flange 70 carries near its forward edge a guide rail 72 against which the chain abuts as it ~20 - passes along the channel. The inner flange 70 carries at the base of the channel a roller guide rail 75 which is the prime supporter of the nozzle block 65 under thru-t from the high pressure water jet issuing from the nozzle 66.
The thrust is transmitted principally through a roller 76 carried on roller bearing pin 77 screwed into the side of the nozzle block. However, the roller 76 is not directly behind the nozzle 66 and a turning moment thereby arises which is taken by a rolLer 80 carried on a roller bearing pin 81 screwed into the base of thL
nozzle block. The roller 80 is restrained from excessive movement away from the roller guide rail 75 by the proximity of the outer flange 71 by the guide channel 30.
The nozzles 66 are so positioned that they are ~ inch from the sealing diaphragm 18 of the coke oven door 15 J
when it is held by the latches 12 of the door gripping mechanism 11. The nozzles give rise to water jets of flat fan-shaped configuration with an included angle which can optionally be changed from 80 to 95 or 110.
The jet orifices are made of tungsten carbide and formed to give the jet pattern. The pressure and volume of water at the jets can be adjusted in the ranges of 3000 psi. to 5000 psi. and 0.13 litres per second to 0.17 litres per second. The combination of pattern of spray, pressure and volume of water can be adjusted to suit the prevailing conditions of the coking process.
It is desirable that the minimum effective pressure and volume be used and it is found that pressure 4t 4000 psi. and volume at 0.15 litres per second with a 110 jet angle is generally adequate with 5000 psi. and 0.17 litres per second only required to effectively remove most severe and obstinate deposits which sometimes occur during periods of abnormal coking process. The use of 80 jet angle is confined to recovering the condition ` `- 1078775 . ,, of door seals which for other reasons have been neglected and not cleaned at the end of each coking cycle.
Adjustment oP the jet angle can be achieved simply by fitting the selected nozzle.
The hydraulic cylinders 36 traverse the nozzles 66 and scraper elements 21 through 30 inches in 8 seconas.
Such a pass ensures adequate overlap between the sprayed and the scraped areas oP the sealing diaphragm 18. One pass in each direction constitutes a full cycle. One cycle is usually sufficient to substantially remove deposits, but any number of passes can be applied.
An alternative water spraying arrangement is shown in Figures 7 to 9. In this arrangement a carrying block 91 is secured to an adapted chain link 92 in a manner similar to that described with reference to Figure 6. A
separate nozzle block 93 is Pitted into a circular hole drilled near the end of the carrying block 91 adjacent the door to be cleaned, and is secured in position by a grub screw (not shown) fitting in further hole 94 tapped into the carrying block 91. A coupling 95 is screwed into the nozzle block 93 for the admission of water under high pressure from a suitable pump and hose arrangement into the hollow central portion of the nozzle block 93.
Two nozzle assemblies, 96 and 97 respectively, are fitted into the nozzle block 93. Each nozzle assembly has an orifice 98 which produces a flat fan-shaped water jet, the long dimension of the jet pattern lying ` 1(~78775 `` :
perpendicular to the direction in which the jet is traversed along the sealing surface. Further, each nozzle is positioned so that the respective jets are directed at an acute angle, i.e. eighty degrees to the sealing surface, each jet being set in an opposite sense. There is thus an angle oP Porty degrees between the two flat-shaped jet Pans. When the nozzle block is traversed in either direction along the sealing surPace, the jets as arranged will have an undèrcutting effect on the tarry deposit present on the sealing surface, thereby assisting in its removal.

Claims (13)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A method of removing tarry deposits from an elongated narrow sealing surface of a generally rectangular coke oven door, the sealing surface extending continuously about the peripheral side and end areas of the inner surface of the door, comprising directing a moving, high pressure, fan-shaped liquid jet of water or an aqueous cleaning solution at the lower end area of the seal surface, the jet being reciprocated along the seal surface and being oriented so its long dimension always extends across the narrow width of the seal surface, and the jet being directed to intersect the seal surface at an acute angle.
2. The method as claimed in claim 1, wherein simulta-neous scraping and jet movement is obtained by mechanically interconnecting the bladed elements and the jet.
3. A method as claimed in claim 1, wherein the liquid is water, the jet pressure is between 3,000 and 5,000 psi (211 and 352 Kgs/sq. cm) and the water flow rate is between 0.1 and 0.2 liters per second.
4. A method of removing tarry deposits from an elongated narrow sealing surface of a generally rectangular coke oven door, the sealing surface extending continuously about the peripheral side and end areas of the inner surface of the door, comprising:
directing two moving, high pressure, fan-shaped liquid jets across the lower end portion of the seal surface, the jets being moved in a reciprocating sense along the seal surface and being oriented so the long dimensions of the jets always extend across the narrow width of the seal surface, the jets being directed to intersect the seal surface at an acute angle, and the jets being supported in fixed relationship with each other so when they are moved along the seal surface in reciprocating fashion, they each are directed over at least adjacent portions of the seal surface.
5. A method as claimed in claim 1, including simulta-neously scraping the side portions of the sealing surface with bladed elements, the latter being reciprocated together with the jet along the seal surface.
6. A method as claimed in claim 4, including simulta-neously scraping the side portions of the sealing surface with bladed elements, the latter being reciprocated together with the jets along the seal surface.
7. A cleaning machine for a vertically oriented rectangular coke oven door having a relatively narrow continuous sealing surface on one side of the door extending along the peripheral edge area of the door, the sealing surface including opposite side portions and opposite, horizontally extending, upper and lower end portions, the machine comprising:
at least one moveable nozzle means for forming and directing a flat, fan-shaped high pressure liquid jet of water or an aqueous cleaning solution against the sealing surface;
means for supporting and carrying the nozzle means linearly and continuously along at least a portion of the length of the lower end portion of the sealing surface and along at least part of the length of one of the side portions of the sealing surface; and means for maintaining the long dimension of the liquid jet always directed across the narrow width of the sealing surface while the nozzle is moved.
8. A machine as claimed in claim 7, including at least one additional moveable nozzle means for forming and directing a flat, fan-shaped high pressure liquid jet against the sealing surface; and additional means supporting and carrying the additional nozzle means linearly and continuously along at least a portion of the length of the upper end portion of the sealing surface and along at least part of the length of one of the side portions of the sealing surface; means for maintaining the long dimension of the liquid jet always directed across the narrow width of the sealing surface when the additional nozzle is moved; and means for moving the said nozzle simulta-neously along the sealing surface.
9. The machine as claimed in claim 7, said nozzle means being arranged to direct the jet at an acute angle relative to the sealing surface.
10. The machine as claimed in claim 7, said nozzle means being arranged to form and direct two flat, fan-shaped jets at an acute angle relative to the sealing surface but in opposite directions, whereby the jets are directed at an angle to the sealing surface in either direction of travel of the nozzle.
11. The machine as claimed in claim 7, including a plurality of scrapers supported for movement adjacent to and along the side portions of the sealing surface and means for reciprocally moving the scrapers along at least the said side portions so that the scrapers adjacent each side portion move in opposite directions for scraping accumulations from the sealing surface, said nozzle means and scrapers all being sup-ported and connected together for simultaneous reciprocal movement, the scrapers including blades extending at an acute angle relative to the sealing surface.
12. A machine as claimed in claim 11, wherein each scraper blade is mounted for pivotable movement about a pivot axis whereby the cutting edge can move towards and away from the sealing surface, with the cutting edge urged by resilient biasing means towards the sealing surface of the door, with each blade edge leading the pivot axis in the scraper direction and lying outwardly of the scraper assembly so that on encountering a hard deposit, each blade tends to be pushed out-wardly to press more firmly into the deposit.
13. A machine as claimed in claim 12, in which each scraper is provided with. stop means to prevent undue outward movement of the cutting edge of the blade towards the sealing surface, whether under the influence of the biassing means or through encountering resistant deposits.
CA265,587A 1975-11-10 1976-11-09 Cleaning coke oven doors Expired CA1078775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46408/75A GB1550626A (en) 1975-11-10 1975-11-10 Cleaning coke oven doors

Publications (1)

Publication Number Publication Date
CA1078775A true CA1078775A (en) 1980-06-03

Family

ID=10441139

Family Applications (1)

Application Number Title Priority Date Filing Date
CA265,587A Expired CA1078775A (en) 1975-11-10 1976-11-09 Cleaning coke oven doors

Country Status (7)

Country Link
US (1) US4097304A (en)
JP (1) JPS5948039B2 (en)
CA (1) CA1078775A (en)
DE (1) DE2651107C2 (en)
FR (1) FR2330755A1 (en)
GB (1) GB1550626A (en)
IT (1) IT1071833B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187335A (en) * 1978-05-15 1980-02-05 Labate Michael D Process for treating coke oven doors and jambs to prevent the build up of tar thereon
DE2845045C2 (en) * 1978-10-16 1981-09-24 Fa. Carl Still Gmbh & Co Kg, 4350 Recklinghausen Method and device for sealing doors on horizontal chamber furnaces
US4251322A (en) * 1979-07-20 1981-02-17 Bate Michael D Process for treating coke oven doors and jambs to prevent the build up of tar thereon
US4243490A (en) * 1979-07-25 1981-01-06 Koritsu Kikai Kogyo Company Limited Radial cutter type cleaning apparatus for coke oven door bottom surface
JPS56129292A (en) * 1980-03-13 1981-10-09 Kouritsu Kikai Kogyo Kk Cleaner for coke oven door
DE3014124A1 (en) * 1980-04-12 1981-10-15 Koritsu Machine Industries Ltd., Tokyo Coke oven door cleaner - where jet nozzles are arranged on scraper device for cleaning knife
US4300986A (en) * 1980-04-17 1981-11-17 Koritsu Machine Industry Limited Coke oven door cleaner
DE3144222C2 (en) * 1981-11-06 1983-12-08 Hartung, Kuhn & Co Maschinenfabrik GmbH, 4000 Düsseldorf Device for treating doors and door frames of horizontal chamber coking ovens
JPS59109584A (en) * 1982-12-14 1984-06-25 Sumitomo Heavy Ind Ltd Cleaning of coke oven with high pressure water
JPS62143438A (en) * 1985-12-18 1987-06-26 Hitachi Tobu Semiconductor Ltd Tray
US4844105A (en) * 1988-10-24 1989-07-04 Silicon Technology, Inc. Spray treatment apparatus for coke oven door structures
KR100403467B1 (en) * 1999-08-13 2003-11-01 주식회사 포스코 Cleaning apparatus for the small door of cokes oven
DE102005051504A1 (en) * 2005-09-20 2007-03-29 Schalker Eisenhütte Maschinenfabrik Gmbh Cleaning device for cleaning oven doors of a coking chamber of a coke oven

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US2302299A (en) * 1940-11-12 1942-11-17 Shell Dev Hydraulic disruption of solids
US3056699A (en) * 1958-12-16 1962-10-02 Woodall Duckham Constr Co Ltd Cleaning of sealing surfaces of doors and door frames of horizontal coke ovens
FR96185E (en) * 1968-02-08 1972-05-19
DE1805388C3 (en) * 1968-10-26 1974-01-31 Heinrich Koppers Gmbh, 4300 Essen Device for cleaning the sealing surfaces of the doors and door frames of coking chamber ovens
GB1295141A (en) * 1969-07-18 1972-11-01
US3660859A (en) * 1970-07-15 1972-05-09 Wilputte Corp Apparatus for cleaning coke oven jambs
DE2143595C3 (en) * 1971-08-31 1974-01-24 Hartung, Kuhn & Co Maschinenfabrik Gmbh, 4000 Duesseldorf Method and device for cleaning coking oven doors and door frames
US3774258A (en) * 1971-10-12 1973-11-27 A Moreau Apparatus for cleaning coke oven doors
US3852250A (en) * 1972-04-18 1974-12-03 Goodyear Tire & Rubber Vulcanization system containing a three-component accelerator system
CA980715A (en) * 1972-08-11 1975-12-30 Stephen J. Miko Hydraulic cleaner for doors and the like
US3847753A (en) * 1973-03-02 1974-11-12 Saturn Mach & Welding Coke oven door and jamb cleaners
US3987964A (en) * 1973-06-29 1976-10-26 Halliburton Company Mobile hydraulic jetting device for cleaning large planar surfaces

Also Published As

Publication number Publication date
JPS52110702A (en) 1977-09-17
FR2330755B1 (en) 1981-02-06
IT1071833B (en) 1985-04-10
GB1550626A (en) 1979-08-15
FR2330755A1 (en) 1977-06-03
DE2651107C2 (en) 1986-03-06
JPS5948039B2 (en) 1984-11-22
DE2651107A1 (en) 1977-05-18
US4097304A (en) 1978-06-27

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